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- BLND SLAT FASTENER. 0. '321,836 Patented July 2, i885.

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UNITED STATES PATENT OFFICE.

PETER M. MELICK, OF NEWARK, NEW JERSEY.v

BLIND-SLAT FASTENER.

SPECIFICATION forming part of Letters Patent No. 321,836, dated July '7, 1885.

Application filed March 24, 1885.

To all whom it may concern:

Be it known that I, PETER M. MELIOK, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Roller-Blind Adjusters and Fasteners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specication.

The object of this invention is to provide a cheap and effective device for holding the slats of a window-blind at any desired angle, either partly open or entirely closed or open, whereby the entrance of air or sunlight can be regulated.

The invention consists of the herein-claimed device, substantially as embodied in the claim clauses.

In the accompanying` sheet of drawings, Figure l is an elevation of a window-blind, showing the improved device in relation therewith. Fig. 2 is avertical section through line m of Fig. 1. Fig. 3 is a perspective view of the adjusting mechanism. Fig. 4 is a perspective View of the fork. Fig. 5 is a plan of the adjusting mechanism, partly in section and broken away; and Fig. 6 is a section of Fig. 5 through line y.

In all window-blinds, after being in use for some time, the slats become so worn that they will not remain fixed in any position, and are in consequence constantly rattling.

As speciied above, my device is designed to prevent the rattling and dropping of the slats, and is so constructed that the said slats may be opened to their fullest extent or to any desired degree.

In using my device I prefer to connect the same with the slat-bar a, as indicated in the drawings, by means of aforked piece, b, which is held in connection with the bar by a pin, c, to allow of pivotal action. The forked piece is arranged upon a bar, d, forming part of an adjustable arm, e, which is integrally united to a rock shaft or bar, f, one end of which bears in a casing, g, and the other end in a (No model.)

detent-plate, 71. Within the casing g, around the end of the bar f, is a spring, z', which, bearing between the end of the casing and a shoulder upon the bar f, presses the arm e in holding engagement with the stops or detents h'.

rIo facilitate the putting of the different part-s of the device together, the detent-plate 7L is cast separately from and riveted to the plate j, as indicated in Fig. 6.

The bar d is provided with a nger-grasping portion, d, opposite to the end of said bar, upon which the forked piece is pivotally arranged.

In Fig. 1 the slats are shown in a closed position, while in Fig. 2 they are partly open. From these views it will be seen that by changing the position of the arm e from one stop to another the slats may be opened to any desired degree, depending upon the number of stops, which can be increased or diminished from the number shown in the drawings.

To change the position of the arm e from one detent to another, the said arm is drawn away from the plate h until it clears the detents, when it can be turned to any desired position. The amount of space in the casing g, Fig. 5, permits this movement of the arm and bar f.

The portion cl of the arm e is elongated, so that the forked connecting piece or link b will have sufficient room to play thereon as the arm is moved from one detent or stop to another.

Having thus described my invention, what I wish to claim isl. In a blind-adjuster, in combination, an adjustable arm, a plate provided with stops or detents thereon, a spring arranged and operating to cause said arm to engage with said steps, and a connecting-piece pivotally attached to said adjusting-arm and the slatbar, for the purposes herein set forth.

2. In a blind -adjuster, in combination, a plate provided with a stop plate or portion, 71 and a casing, a bar journaled in said stopplate and casing, and provided with an arm adapted to engage with the detents on said stop-plate, an adjusting-arm having a ngergrasping portion, and a portion, d, a forked link pivotally attached to said portion d on IOO the adjusting-arm and the slot-bar, and a have hereunto set my hand this 17th day of spring arranged Within the casing and oper- February, 1885. atino' upon the har jourualed in said easing, 4, l to cruse the adjustable arm to engage with PDFER M' MDLICK' 5 the deteuts ou the stop-plate, substantially :1s NVitnesses:

and for the purpose Set forth. OLIYER BRAKE,

In testimony that I claim the foregoing I FRBDK. F. CAMPBELL. 

